2001 TOYOTA SEQUOIA key

DID98±01
I28587
From Battery Driving Position Memory Switch BODY ECU
Courtesy SW (D)
MM
Remote Control Mirror Switch
RHOuter
Mirror LH
(Retract
Motor) M1
M2 MM
M1 DCTY
PCTY
RRCY
RLCY
HCTY
KSW
LSWR
LSWL
PKB
WIG
IG
ACC
BECU
S+B
BDRACT+
ACTD
ACT±M2
MIRB
MIRS
MIRFM+
MSW
EB
MF
E2MR
Door Lock Motor
Front
LHFront
RHRear
LHRear
RH
Courtesy SW (P)
Courtesy SW (RR)
Courtesy SW (RL)
Hood Courtesy SW
Key Unlock Warning SW
Door Unlock Detection
SW Rear RH
Door Unlock Detection
SW Rear LH
Parking Brake SW
Battery AM1ALTACC IG1 Ignition SwitchWSH
ECU±IG
RAD No. 2
ECU±B
DOOR No. 2SECURITY
HORN AM1
± DIAGNOSTICSBODY CONTROL SYSTEM
DI±1679
1873 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DIAGRAM

DI1OE±19
Inspector 's name:
Customer 's Name
Date VehicleVIN
Licence Plate No.
Production Data
Odometer Reading / /km
mile
Weather Conditions
When Problem
Occurred
Date Problem First Occurred
Frequency Problem Occurs
Weather
/ /
Once only Brought in
Malfunction
System
Outdoor Temperature
Fine Cloudy Rainy Snowy
Various/Others
Hot Warm Cool
Cold (Approx. °F ( °C))
Constant Sometimes ( times per day, month)
Key Unlock Warning System
Headlight and Taillight System (Light Auto Turn±off system, Daytime Running
Light System
Stop Light System
Automatic Light Control System
Illuminated Entry System
Foglight System
Wiper and Washer System
Power Window Control System
Power Door Lock Control System
Theft Deterrent System
Wireless Door Lock Control System
Others (Buzzer etc.)
Auto Lock/Unlock System BODY CONTROL SYSTEM Check Sheet
Remote Control Mirror System (w/ Driving Position Memory)
± DIAGNOSTICSBODY CONTROL SYSTEM
DI±1683
1877 Author: Date:
2005 SEQUOIA (RM1146U)
CUSTOMER PROBLEM ANALYSIS CHECK

DID9A±01
DI±1684
± DIAGNOSTICSBODY CONTROL SYSTEM
1878 Author: Date:
2005 SEQUOIA (RM1146U)
CUSTOMIZE PARAMETERS
HINT:
The following items can be customized.
NOTICE:

When the customer requests a change in a function, first make sure that customization of the
function(s) is/are possible.

Be sure to make a note of the current setting before customizing.

When troubleshooting a function, first make sure that the function is not set to OFF.
WIRELESS DOOR LOCK:
DISPLAY (ITEM)DEFAULTCONTENTSSETTING
WIRELESS OPERONTurns wireless door lock function ON/OFF.ON/OFF
OPEN DOOR WARNONSounds buzzer for 10 seconds when door is not completely
closed and transmitter LOCK switch is pressed.ON/OFF
AUTO LOCK DELAY30SControls amount of time from when doors are unlocked until
they are locked by automatic lock function.60S/30S
UNLOCK/2OPERON
When UNLOCK switch is pressed once, this function un±
locks only the designated door. When unlock switch is
pressed again within 3 seconds, all doors unlock. If setting is
OFF, pressing UNLOCK switch once unlocks all doors.
ON/OFF
LNT/LGT ON/UNLKONTurns on room light when wireless door lock system is oper-
ated.ON/OFF
ALARM FUNCTIONONOperates theft deterrent system when transmitter LOCK
(PANIC) switch is held for 3 seconds.ON/OFF
AUTO LOCKOFFLocks doors when the vehicle speed reaches a certain level.ON/OFF
UNLK/KEY TWICEON
Unlocks only driver's door when driver's door key cylinder is
turned to unlock once, and unlocks all doors when it is turned
to unlock twice. In OFF setting, unlocks all doors when the
cylinder is turned to unlock once.
ON/OFF
ALL UNLK/OPN±CLOFFFunction that unlocks all doors when the driver door is
opened after turning the ignition switch off.ON/OFF
UNLOCK/PARKOFFUnlocks doors when shift lever is moved to P position from
any position other than P while the ignition switch is ON.ON/OFF
THEFT:
DISPLAY (ITEM)DEFAULTCONTENTSSETTING
WARNING TIME15SChanges warning time for PASSIVE MODE.5S/15S/27.5S/60S
PASSIVE MODEOFF
Switches theft deterrent system from arming preparation
state to armed state 30 seconds after key is removed from
ignition key cylinder and driver side door is closed, even if
doors are not locked by wireless or door key lock operation.
ON/OFF
WARN BY GLS SENONFunction that switches the alarm warning on/off when glass
breakage is detected.ON/OFF
DOOR LOCK:
DISPLAY (ITEM)DEFAULTCONTENTSSETTING
AUTO LOCK/SHIFTONLocks doors when shift lever is moved from P to another
position.ON/OFF

DI1OH±18
DI±1686
± DIAGNOSTICSBODY CONTROL SYSTEM
1880 Author: Date:
2005 SEQUOIA (RM1146U)
PROBLEM SYMPTOMS TABLE
DOOR LOCK CONTROL
SymptomSuspected AreaSee page
Lock or unlock cannot be operated with door lock control switch.
1. Door lock control switch (Power source circuit)
(Driver's)
(Passenger's)
2. Body ECU
DI±1788
DI±1826
IN±35
Door key linked function does not operate.
1. Door key lock and unlock switch circuit (Driver's)
(Passenger's)
2. Body ECUDI±1794
DI±1832
IN±35
Key confinement prevention function does not operate.1. Key unlock warning switch circuit
2. Body ECUDI±1715
IN±35
Door lock function does not operate.1. Door lock motor circuit
2. Body ECUDI±1720
IN±35
THEFT DETERRENT SYSTEM
SymptomSuspected AreaSee page
No alerting condition is operated. (The system cannot be set.)
1. Security indicator circuit
2. Key unlock warning switch circuit
3. Courtesy light switch circuit
4. Door unlock detection switch circuit (Driver's)
(Passenger's)
5. Engine hood courtesy light switch circuit
6. Back door courtesy light switch circuit
7. Back door ECU
8. Body ECUDI±1731
DI±1715
DI±1728
DI±1791
DI±1829
DI±1725
DI±1864
IN±35
IN±35
Cannot be canceled when IG is turned ON with a key.
1. Key unlock warning switch circuit
2. Ignition switch
3. Body ECUDI±1715
BE±24
IN±35
Cannot be canceled when unlocking the back door with a key.1. Back door ECU
2. Body ECUIN±35
IN±35
Headlights do not light up as an alert function.1. Headlight relay circuit
2. Body ECUDI±1708
IN±35
Taillights do not light up as an alert function.1. Taillight relay circuit
2. Body ECUDI±1706
IN±35
Theft deterrent horn or vehicle horn does not sound.
1. Security horn circuit
2. Horn circuit
3. Body ECUDI±1734
DI±1764
IN±35
During warning condition, cannot be canceled by unlocking the
door with a key.1. Door key lock and unlock switch circuit (Driver's)
(Passenger's)
2. Body ECUDI±1794
DI±1832
IN±35
During warning condition, cannot be canceled by unlocking the
door with a key. (transmitter)1. Transmitter
2. Body ECUBE±99
IN±35
During warning condition, cannot be canceled by turning the igni-
tion ON with a key.1. Ignition switch
2. Key unlock warning switch circuit
3. Body ECUBE±24
DI±1715
IN±35
The system operated for more than 60 seconds.Body ECUIN±35
Glass breakage sensor does not operate.1. Glass breakage sensor circuit
2. Body ECUDI±1774
IN±35

± DIAGNOSTICSBODY CONTROL SYSTEM
DI±1687
1881 Author: Date:
2005 SEQUOIA (RM1146U)
WIRELESS DOOR LOCK CONTROL
SymptomSuspected AreaSee page
All functions of wireless door lock control system do not operate.
1. Transmitter
2. Wireless door lock receiver circuit
3. Key unlock warning switch circuit
4. Body ECUBE±99
DI±1737
DI±1715
IN±35
Lock (or unlock) function does not operate.
1. Door unlock detection switch circuit (Driver's)
(Passenger's)
(Rear Door)
(Back Door)
2. Any door ECU
3. Body ECUDI±1791
DI±1829
DI±1723
DI±1869
IN±35
IN±35
Automatic lock function operates even if any door is opened within
30 seconds after all doors are unlocked by wireless door lock
control system.1. Door courtesy light switch circuit
2. Any door ECU
3. Body ECUDI±1728
IN±35
IN±35
Wireless door lock function operates, but the buzzer does not
sound.1. Wireless door lock buzzer circuit
2. Body ECUDI±1741
IN±35
Buzzer sounds, but wireless door lock function does not operate.Body ECUIN±35
REAR WIPER AND WASHER
SymptomSuspected AreaSee page
Rear wiper does not operate.1. Rear wiper switch and motor circuit
2. Body ECUDI±1704
IN±35
Rear washer does not operate.1. Rear washer switch and motor circuit
2. Body ECUDI±1704
IN±35
LIGHT CONTROL
SymptomSuspected AreaSee page
Automatic light control does not operate.
1. Automatic light control sensor circuit
2. Light control switch circuit
3. Body ECUDI±1753
DI±1750
IN±35
Auto turn±off does not operate.
1. Door courtesy light switch circuit (Driver side)
2. Ignition switch
3. Driver door ECU
4. Body ECUDI±1728
BE±24
IN±35
IN±35
Daytime running light function does not operate.
1. Daytime running light relay circuit
2. Parking brake switch circuit
3. Body ECUDI±1712
DI±1744
IN±35
FOG LIGHT
SymptomSuspected AreaSee page
Fog lights do not come on.
1. Bulb
2. FOG fuse
3. Fog light relay and switch circuit
4. Body ECU±
BE±14
DI±1710
IN±35
OTHERS
SymptomSuspected AreaSee page
Illuminated entry function does not operate.1. Illumination circuit
2. Body ECUDI±1759
IN±35
All functions of the body control system do not operate.1. Power source circuit
2. Body ECUDI±1700
IN±35
Remote control mirror does not operate.
(w/ Driving position memory)1. Remote control mirror switch circuit
2. Driving position memory switch circuit
3. Body ECUDI±1767
DI±1772
IN±35

DI1OG±31
I27698
B5B6
B7 BODY CONTROL ECU:
DI±1688
± DIAGNOSTICSBODY CONTROL SYSTEM
1882 Author: Date:
2005 SEQUOIA (RM1146U)
TERMINALS OF ECU
Symbols (Terminals No.)Wiring ColorTerminal DescriptionConditionSpecified Condition
KSW ± GND1
(B5±13 ± B6±6)Y±G ± W±BKey unlock warning
switch signalKey unlock warning switch ON
(Key inserted)Below 1 V
KSW ± GND1
(B5±13 ± B6±6)Y±G ± W±BKey unlock warning
switch signalKey unlock warning switch OFF
(Key not inserted)10 to 14 V
KSW2 ± GND1
(B5±15 ± B6±6)Y±G ± W±B
Key unlock warning
switch signal (Immobi-
lizer)Key unlock warning switch ON
(Key inserted)Below 1 V
KSW2 ± GND1
(B5±15 ± B6±6)Y±G ± W±B
Key unlock warning
switch signal (Immobi-
lizer)Key unlock warning switch OFF
(Key not inserted)10 to 14 V
HR ± GND1
(B7±18 ± B6±6)W±R ± W±BHorn switch signalHorn switch ONBelow 1 V
HR ± GND1
(B7±18 ± B6±6)W±R ± W±BHorn switch signalHorn switch OFF10 to 14 V
BDN ± GND1
(B6±15 ± B6±6)P±L ± W±BBack door power win-
dow motor (DOWN)Back door power window switch
DOWN positionBelow 1 V
BDN ± GND1
(B6±15 ± B6±6)P±L ± W±BBack door power win-
dow motor (DOWN)Back door power window switch
OFF or UP position10 to 14 V
BUP ± GND1
(B6±14 ± B6±6)W ± W±BBack door power win-
dow motor (UP)Back door power window switch
UP positionBelow 1 V
BUP ± GND1
(B6±14 ± B6±6)W ± W±BBack door power win-
dow motor (UP)Back door power window switch
OFF or DOWN position10 to 14 V
ACC ± GND1
(B7±10 ± B6±6)GR ± W±BIgnition switch (ACC)Ignition switch OFFBelow 1 V
ACC ± GND1
(B7±10 ± B6±6)GR ± W±BIgnition switch (ACC)Ignition switch ACC or ON10 to 14 V
BECU ± GND1
(B6±5 ± B6±6)W±R ± W±BBatteryAlways10 to 14 V
RLCY ± GND1
(B7±7 ± B6±6)R±W ± W±BCourtesy light switch
(Rear LH)Rear LH door courtesy light
switch ON (Open)Below 1 V
RLCY ± GND1
(B7±7 ± B6±6)R±W ± W±BCourtesy light switch
(Rear LH)Rear LH door courtesy light
switch OFF (Closed)10 to 14 V
RRCY ± GND1
(B5±8 ± B6±6)R±W ± W±BCourtesy light switch
(Rear RH)Rear RH door courtesy light
switch ON (Open)Below 1 V
RRCY ± GND1
(B5±8 ± B6±6)R±W ± W±BCourtesy light switch
(Rear RH)Rear RH door courtesy light
switch OFF (Closed)10 to 14 V
PCTY ± GND1
(B5±22 ± B6±6)LG±B ± W±BCourtesy light switch
(Front RH)Passenger door courtesy light
switch ON (Open)Below 1 V

DID99±01
DI±1694
± DIAGNOSTICSBODY CONTROL SYSTEM
1888 Author: Date:
2005 SEQUOIA (RM1146U)
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
According to the DATA LIST displayed by the hand±held tester, you can read the values of the switches,
sensors, actuators and so on without parts removal. Reading the DATA LIST as a first step of troubleshooting
is one of the methods to shorten labor time.
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON.
(c) According to the display on the tester, read the ºDATA LISTº.
BODY ECU:
ItemMeasurement Item/Display
(Range)Normal ConditionDiagnostic Note
KEY UNLK WRN SWKey unlock warning switch/ON or
OFFON: Key is in ignition key cylinder
OFF: No key is in ignition key cyl-
inder
±
ACC SWACC switch/ON or OFFON: Ignition switch ACC
OFF: Ignition switch OFF±
IG SWIG switch/ON or OFFON: Ignition switch ON
OFF: Ignition switch OFF±
PARKING BRAKE SWParking brake switch/ON or OFF
ON:
Parking brake pedal depressed
(ON)
OFF:
Parking brake released (OFF)
±
HOOD COURTSY SWHood courtesy switch/ON or OFF
ON: Engine hood OPEN
(Hood courtesy switch ON)
OFF: Engine hood CLOSED
(Hood courtesy switch OFF)
±
D DOR CTY SWDriver door courtesy light switch/
ON or OFFON: Driver door is opened
OFF: Driver door is closed±
P DOR CTY SWFront passenger door courtesy
light switch/ON or OFF
ON: Front passenger door is
opened
OFF: Front passenger door is
closed
±
Rr DOR CTY SWRear passenger door courtesy
light switch/ON or OFF
ON: Rear passenger door is
opened
OFF: Rear passenger door is
closed
±
MIRR SEL SW RRemote control mirror switch pas-
senger side/ON or OFF
ON: Remote control mirror switch
passenger side is selected
OFF: Remote control mirror switch
passenger side is not selected
±
MIRR SEL SW LRemote control mirror switch driv-
er side/ON or OFF
ON: Remote control mirror switch
driver side is selected
OFF: Remote control mirror switch
driver side is not selected
±
MIRR POS SW RRemote control mirror switch R
position/ON or OFF
ON: Remote control mirror switch
R position is selected
OFF: Remote control mirror switch
R position is not selected
±

DI±1696
± DIAGNOSTICSBODY CONTROL SYSTEM
1890 Author: Date:
2005 SEQUOIA (RM1146U)INT/LGT ON/UNLK
ON or OFF
ON: Dome light comes on when
the doors are unlocked by the
wireless transmitter
OFF: Dome light does not come
on when the doors are unlocked
by the wireless transmitter
±
ALARM FUNCTIONPanic function signal/ON or OFFON: Panic function operated
OFF: Panic function not operated±
AUTO LOCKVehicle speed linked door lock/ON
or OFFCustomized condition will be dis-
played±
UNLK/KEY TWICEON or OFF
ON: Pressing the ºUNLOCKº
switch twice unlocks the driver
side door
OFF: Pressing the ºUNLOCKº
switch twice does not unlock the
driver side door
±
ALL UNLK/OPN±CL
Ignition switch OFF, shift lever P
position, driver courtesy lamp
switch ON signal/ON or OFFON: All doors unlock when open-
ing driver door within 10 seconds
after turning ignition switch OFF
OFF: Doors are not unlocked
±
UNLOCK/PARK
Ignition switch OFF, shift lever P
position, vehicle speed 0 km/h /
ON or OFF
ON: All doors unlock when shift
lever is moved to P from any posi-
tion other than P while ignition
switch is ON.
OFF: No door unlocks even when
shift lever is moved to P from any
position other than P while ignition
switch is ON
±
WARNING TIMEWarning time/5S, 15S, 27.5S or
60SCustomized value will be dis-
played±
PASSIVE MODEPassive mode information/ON or
OFFCustomized condition will be dis-
played±
WARN BY GLS SENON or OFF
ON: Warns when glass breakage
is detected
OFF:Does not warn when glass
breakage is detected
±
ENTRY DELAYIlluminated entry delay/0S, 14S or
30SCustomized value will be dis-
played±
AUTO LOCK/SHIFTON or OFF
ON: Auto lock function can be set
by the shift lever
OFF: Auto lock function cannot be
set by the shift lever
±
I/L ON/UNLOCKRoom light signal/ON or OFFON: Room light is on
OFF: Room light is off±
LIGHTING TIMELighting time/7.5S, 15S or 30SCustomized value will be dis-
played±
SENSITIVITY
Turn on luminous intensity/
DARK2, DARK1, NORMAL,
LIGHT1 or LIGHT2Customized condition will be dis-
played±
LIGHT OFF DELAYLight auto off delay/OFF, 30S, 60S
or 90SCustomized condition will be dis-
played±